To have interaction at the mill or to encounter it or to see a mill, when you are dreaming, can be interpreted as symbolism of the inability to adapt. Maybe you don’t know how use information from your past. Are you able to learn from your experiences? Are you able to apply these experiences to current problems or situations? On the other hand, there can be different explanation. Alternatively, mill in the dream has meaning of turning around or changing poles. That means change, transformation or alteration in some situation or any relationship in your waking life.
Read more about dreaming of Mill in other dream meanings interpretations.